Tobacco pipe



Sept. 30, 1924. 1,510,003

c. o. JOHNSON TOBACCO PIPE Filed May 17 1920 fav. (Mmm.

Patented sept. 3o, '1924.

UNITED STATES,-

CARL O. JOHNSON, OF MINNEAPOLIS, MINNESOTA.

'ronacco rrrn Application lled Iay'17, 1920. Serial No. 381,821..

To all 'whom it may concern?- Be it known4 that I, CARL O. J oriNson, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Tobacco Pipes; and I do hereby declare the following to be a ull, clear, and exact description l of the invention, such as ywill enable others skilled in the art to which it appertains to make and use the same. v

My invention has for its object to provide an improved tobacco pipe, and to this end, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claim.

In the accompanying drawings, whichl illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

. Fig. 1 is a side elevation of the improved tobacco pipe;

Fig. 2 is a view principally 1nlong1tud1nal central section; and

Fig. 3 is a plan view 'of one of the absorbent partitions.

My improved tobacco p1pe may .take various different orms and, as illustrated, comprises a bowl 4, a sub-bowl 5, a straight stem 6 and a straight mouthpiece 7. In

the bottom of the bowl 4 are a plurality of other suitable material.

smoke paaveways 8, and the extreme lower end of saidlbowl is reduced and detachably screwed into the sub-bowl 5. -In the bottom of the sub-bowl 5 is a smoke chamber 9, and formed thereabove, in the internal wall of said sub-bowl, are two vertically spaced annular shoulders or .shelves 10, on which are removably seated two disk-like partitions 11 of cotton or other absorbent material. These partitions 11 are vertically spaced by the shoulder 1G to.- afford an air space 12 therebetween and act as smoke purieIS.- Y

The marginal edges of the partltlons 11, as shown, are re-inforced bv attaching thereto rings of paper or other suitable mater1al 13, but these are not necessary and may be dispensed with. The stem 6 and mouth ieee 7 are detachably -connected internally y a screw-threaded sleeve 14 on theouter end of a smoke conduit 15 of aluminum or The outer end of the smoke conduit 15 is inserted through a bore 1 6 inthe sub-bowl 5 and connects the smoke chamber 9 with a saliva chamber 17 in the inner end of the mouth piece `7. Asshown, the stem 6 is lintegrally formed with the sub-bowl 5 and is provided with an air chamber 18, which surrounds the smoke conduit15;

Intake and outlet passageways 19 and 20 connect the air chamber 18 to the atmosphere, and it will be noted that these passageways are located in the vicinity of the outer and inner ends of said air chamber, respectively. An axial assageway 21 in the mouth piece 7 exten s from the. inner end of said mouth piece to the mixing chamber 17. i

The purpose of the smoke purifying partitions 11 is to absorb the 'greater part of the nicotine and moisture in the smoke during its travel from the bowl 4 to the smoke chamber 9, thereby vleaving the lsmoke milder and prevents the pipe from becoming foul. When the partition plates 11 are ,filled up, they maybe removedand new ones substituted therefor. The intake and outlet passageways 19l and 2() afford a circulation of air through the air chamber 18.

and around the smoke conduit 15 to keep Asaid air conduit cool and, hence, cool the smoke in its travel from the smoke chamber 9 to the saliva chamber 17. To remove the partitions 11, it is only necessary to unscrew the bowl 4 from the sub-bowl 5 and when said partitions are removed, the smoke chamber 9 may be easily cleaned. By' unscrewing the mouth piece 7 from the sleeve 14 and then unscrewin'g said sleeve from the stem 6 to remove the smoke conduit 15 from said stem, said mouth piece and smoke conduit may be easily cleaned.

` What I claim is:

A tobacco pipe comprising a stem hav ing, two distinct longitudmal chambers formed therein, the inner of which forms a saliva collecting chamber and the other of which forms a cooling chamber, said cooling chamber having an aperture therefrom to the atmosphere at its top portion adjacent one end and another aperture to the atmosphere at its bottom and adjacent its other end, a conduit',v passing centrally through said cooling chamber and communicating with said saliva collecting chamber, said stem having a sub-bowl with a chamber formed therein at its outer end with which chamber the other end of said conduit communicates, a tobacco receivin bowl at- In testmon whereof I ax my s'xgna'ture tached to said stem above sald sub-bowl h f d b --in presence 0 two witnesses.

aving 'a per crate ottom and a plul ralty of spaced layers of absorbent mate- CARL O' JOHNSON 5 rial disposed in said sub-bowl chamber and .Wit-messes:

spaced from 'said perforated bottom of the FRED CARLSON, tobacco receiving bowl. AXEL ScoBLoM. 

